Related Experiment Video
Updated: Aug 23, 2025
09:23
Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators
Published on: May 30, 2014
14.6K
Remote switch for Schrödinger's cat state using Einstein-Podolsky-Rosen entanglement
Optics Express
|October 27, 2022
Summary
Researchers developed a
Area of Science:
- Quantum optics
- Quantum information science
Background:
- Schrödinger's cat states (SCS) are crucial for quantum computing.
- Generating and controlling SCS remotely is challenging.
Purpose of the Study:
- To propose and demonstrate a 'remote switch' for generating Schrödinger's cat states.
- To enable nonlocal manipulation and control over SCS properties.
Main Methods:
- Utilizing nonlocal correlations within an Einstein-Podolsky-Rosen entangled state.
- Implementing a conditional 'hybrid projective measurement' (HPM) on one mode.
- HPM involves photon number measurement and homodyne conditioning.
Main Results:
- Successfully heralded an approximate Schrödinger's cat state at a remote mode.
- Demonstrated full control over the size and parity of the generated SCS via HPM.
- Established a method for nonlocal manipulation of non-Gaussian states.
Conclusions:
- The proposed remote switch offers a novel approach for generating and controlling SCS.
- This technique opens new avenues for fundamental tests in quantum mechanics.
- Enables nonlocal manipulation of quantum states, advancing quantum information protocols.
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